The woman, identified in a police report as Michelle Marie Ploetz, 20, of St. Paul, was taken to Regions Hospital; the hospital was not releasing her condition Thursday but St. Paul police said Thursday morning her condition had not changed.

She was not responsive when police arrived at the scene.

The shooting occurred just after 5 p.m. on northbound White Bear, just north of Ross Avenue. Police believe the gunman was inside the SUV at the time of the shooting, but then fled on foot down a nearby alley.

Timothy Scott Hendricks, 19, of St. Paul later arrived at Regions with several acquaintances. He was arrested at 7:35 p.m. and was booked in the Ramsey County jail on suspicion of felony assault, according to a jail log.

Police declined to say what the pair's relationship was, or whether anyone else was in the car, though they described the incident as a "domestic." Police spokesman Howie Padilla said the shooter and his victim knew each other.

It was unclear where in the vehicle Ploetz was sitting; the SUV's rear passenger window was shattered.